Regex r=new Regex(@"<(tr|TR)[\s\S]*?>(?<innerhtml>[\s\S]*?)</(tr|TR)>",RegexOptions.Compiled);
for (Match m = r.Match(str); m.Success; m = m.NextMatch())
{
string getstr=m.Result("innerhtml=${innerhtml}");
Response.Write(getstr +"<br>");
}
for (Match m = r.Match(str); m.Success; m = m.NextMatch())
{
string getstr=m.Result("innerhtml=${innerhtml}");
Response.Write(getstr +"<br>");
}
不过请问一下第二个问号代表什么意思